I installed this Munchkin over 8 years ago in my cousins house and we never got around to install the 60 gallon Superstore Indirect water heater until yesterday. Lol This house had an original gravity hot water system (no circulating pump) we ripped out the entire heating system and started from scratch. The idea was to rip out the masonry chimney that went through the kids bedroom closet to make more room. This Mod Con is vented out the side of the house with 2" CPVC, so now that we have the Indirect hooked up and on line the existing gas fired water heater is no longer needed and the chimney can be removed.
Not used to seeing steel pipe and fittings in the home , kinda what I fit at work for steam air water and condensate